APC Smart-ups 1920 Watts /1920 VA Input 120V /output 120V Interface Port USB R - SMT2200RMUS

APC by Schneider Electric SMT2200RMUS 2200VA Rackmount UPS

Overview

The APC SMT2200RMUS is a 2200VA / 1980W 2U rackmount uninterruptible power supply built for server rooms, security infrastructure, and NVR/VMS deployments where clean, uninterrupted power is not optional. It delivers a true sine wave output — not stepped approximation — which matters for any load that uses active PFC power supplies, variable-speed drives, or sensitive analog circuitry. If you're running a rack of IP cameras, network video recorders, or access control servers, this is the class of UPS that actually protects that equipment rather than just bridging a momentary outage.

Operating on 120V input with a NEMA 5-20P plug, the SMT2200RMUS accepts input voltages from 75V to 154V before switching to battery — a wide enough window to ride through most utility sag events without burning battery runtime on routine voltage fluctuations. Output is regulated 120V at up to 98% efficiency in normal operation, which keeps heat and operating costs manageable in a 24/7 rack environment.

Key Features

• 1980W / 2200VA True Sine Wave Output: Pure sine wave at full load means active PFC power supplies in servers and NVRs won't fault or derate — a common failure mode when UPS units output modified sine waves. The SMT2200RMUS delivers utility-grade waveform regardless of battery or line condition.
• Wide Input Voltage Window (75–154V): The 79V span between cutover thresholds means the unit stays on line power through browndowns and surges that would force lesser UPS units onto battery. For a 24/7 security rack, that translates directly to longer battery service life.
• 98% Efficiency: At 98% efficiency on line power, the SMT2200RMUS adds less than 40W of overhead at full load compared to a direct utility feed. Over a year of continuous operation, that's a meaningful reduction in heat load and cooling cost in a sealed IDF closet or server room.
• 530J Surge Energy Rating: The built-in surge suppression handles 530 joules — adequate for incidental transient events. Note this is surge absorption for connected equipment, not a substitute for upstream lightning protection on exposed runs.
• 8 AC Outlets (NEMA 5-15R and 5-20R Mix): Eight total outlets accommodate both standard 15A and 20A loads, giving you flexibility to mix servers, switches, cameras, and NVRs on a single UPS without adapters. Verify individual circuit ratings before loading high-draw devices.
• USB 2.0 Management Port: The onboard USB port connects to a host server for graceful shutdown integration. Pair this with UPS management software to automate safe system shutdown before battery exhaustion — critical for NVR systems writing active video to disk.
• Emergency Power Off (EPO) Support: EPO capability allows remote or automated cutover in data center environments where safety interlocks require instantaneous de-energization of rack equipment — required in many raised-floor deployments and by some fire suppression systems.
• Sealed Lead Acid (VRLA) Battery: VRLA batteries require no maintenance topping or venting provisions, making them safe for enclosed rack rooms and IT closets without dedicated battery storage infrastructure. Hot-swap capability (verify for this model) minimizes downtime during battery replacement cycles.
• Output THD ≤5%: Under 5% total harmonic distortion on the output keeps sensitive electronics — particularly analog-to-digital converters in high-resolution cameras and audio subsystems — operating within spec. Some competing UPS designs push THD above 8% under heavy load.
• 55 dB Noise Level: At 55 dB, this unit is audible in a quiet office environment but appropriate for a dedicated server room or IDF closet. Not suitable for open-plan office deployments adjacent to workstations without acoustic enclosure.
• Battery Replacement Alarm: The audible alarm triggers on battery replacement conditions, giving operations staff an actionable alert before the battery reaches end-of-life — preventing the scenario where a UPS fails silently and provides no protection during the next outage.

Integration & Compatibility

The SMT2200RMUS fits a standard 2U rack slot and works with APC's PowerChute software for automated graceful shutdown across Windows, Linux, and VMware environments. The USB management interface is recognized natively by most operating systems without additional drivers. For larger network video recorder deployments, size the UPS load at no more than 80% of rated capacity — 1584W continuous — to maintain adequate runtime headroom and avoid thermally stressing the unit during extended outages. The NEMA 5-20P input plug requires a 20A dedicated circuit; confirm your rack PDU or wall outlet rating before installation. Integrators deploying this unit in UPS and power protection stacks should account for the 50/60 Hz auto-sensing input, which handles both North American utility frequencies without configuration.

Frequently Asked Questions

Q: What is the input plug type on the SMT2200RMUS, and what circuit does it require?

A: The SMT2200RMUS uses a NEMA 5-20P input plug and requires a dedicated 20A, 120V circuit. Do not connect it to a standard 15A outlet without a verified 20A circuit and matching receptacle.

Q: Does the SMT2200RMUS output a pure sine wave or modified sine wave?

A: It outputs a true pure sine wave — both on battery and on line power — making it compatible with active PFC power supplies used in modern servers, NVRs, and networking equipment. Modified sine wave UPS units can cause instability or damage to active PFC loads.

Q: What outlet types are available on the SMT2200RMUS?

A: The unit provides 8 AC outlets in a mix of NEMA 5-15R (standard 15A) and NEMA 5-20R (20A) configurations, accommodating a range of server and networking equipment without adapters.

Q: How does the USB port on the SMT2200RMUS work?

A: The USB 2.0 port connects to a host computer or server and enables graceful automated shutdown via APC PowerChute or compatible UPS management software. This prevents data corruption on NVRs and servers during extended outages when battery charge is depleted.

Q: What is the surge energy rating of the SMT2200RMUS?

A: The SMT2200RMUS provides 530 joules of surge suppression for connected equipment. This handles typical transient events but is not a replacement for dedicated upstream lightning or surge protection on exposed utility or data lines.

Q: Is the SMT2200RMUS suitable for a quiet office environment?

A: The unit operates at 55 dB — appropriate for a dedicated server room or IDF closet, but noticeable in a quiet office. For open-plan or shared spaces, consider acoustic enclosure or place the unit in a dedicated equipment room.

James Everett

The SMT2200RMUS sits in a sweet spot for mid-density security infrastructure racks — 1980W of true sine wave capacity at 98% efficiency covers a typical NVR-plus-switching stack with margin to spare. The 75–154V input window is the spec I look at first on any UPS going into a commercial building; that range tells you whether the unit will actually stay on line during the browndowns and sags that trip cheaper units onto battery every afternoon.

Technical Highlights:

• 98% Line Efficiency: Less than 40W of overhead at full load keeps rack thermals predictable — critical in closets where cooling is sized tight and every watt of heat matters year-round.
• Pure Sine Wave at 1980W: Active PFC power supplies in modern NVR chassis and managed switches require true sine wave; the SMT2200RMUS delivers it continuously, not just on line power. Eliminates the instability and shutdown-on-transfer failures seen with stepped waveform units.
• 530J Surge + EPO: The combination of onboard surge suppression and Emergency Power Off support satisfies most commercial electrical inspection requirements for rack-mounted UPS in raised-floor and suppressed data rooms.

Deployment Considerations:

• The NEMA 5-20P input mandates a dedicated 20A circuit — confirm this before rack installation. A surprising number of IDF closets are wired to 15A circuits and will require an electrician visit before this unit goes live.
• At 55 dB operating noise, this unit should be in a closed equipment room. If the rack is in an open office or a shared space, occupant complaints are likely and the noise level is a real constraint, not a footnote.

For a 16- to 32-camera NVR deployment with a managed PoE switch and a dedicated server, the SMT2200RMUS provides the power capacity, waveform quality, and management interface to make the installation both code-compliant and operationally reliable long-term.